Which plug adaptor do I need when travelling from Cook Islands to Estonia?

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The table below summarises the plug types, voltage and frequency of electrical current in both Cook Islands and Estonia.

Cook IslandsEstonia
Plug TypesIF
Frequency of electrical current50Hz50Hz

Plug Adaptors

Cook Islands uses Plug Type I.

Your Appliance has Plug Type I

You will need this adaptor:

Socket Type I
(Cook Islands)
to Plug Type F



The voltages found in Cook Islands (240V) and Estonia (230V) are not exactly the same, but the difference is tolerable, so you should not need a transformer.

Good to know

Frequency of Electrical Current

The frequency found in Cook Islands and Estonia is exactly the same (50Hz). Timing devices and appliances that use motors will function as expected under this frequency.

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